CN110222970A - Consider that the spare gas-of energy storage is electrically coupled integrated energy system flexible scheduling method - Google Patents
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Abstract
It is a kind of to consider that the spare gas-of energy storage is electrically coupled integrated energy system flexible scheduling method, comprising: integrated energy system to be electrically coupled according to selected gas-, input gas-is electrically coupled the structure and parameter of integrated energy system；It establishes gas-and is electrically coupled integrated energy system equipment operation constraint and cold/electric equilibrium of supply and demand constraint；Carry out the calculating in energy storage spare capacity rolling calculation stage；Carry out the Optimized Operation of economic dispatch stage a few days ago；Carry out the Optimized Operation in real time execution stage.The present invention is electrically coupled the Optimal Scheduling of integrated energy system based on solution gas-, fully consider the complementary coordinative role of power driven equipment, gas driven equipment, and play the responding ability of in emergency circumstances energy storage equipment, it establishes and considers that energy storage cushion gas-is electrically coupled integrated energy system multistage flexible scheduling model, load restoration scheme when obtaining system operation plan and failure occurring a few days ago.
Description
Technical field
The present invention relates to a kind of integrated energy system flexible scheduling methods.It is spare more particularly to a kind of consideration energy storage
Gas-is electrically coupled integrated energy system flexible scheduling method.
Background technique
With getting worse for fossil fuel shortages, global warming and problem of environmental pollution, Optimization of Energy Structure is constructed green
Color, efficient new energy system become and realize energy sustainable development urgent problem to be solved.Gas-is electrically coupled comprehensive energy
System depth couples various forms of energy such as electricity, heat, gas, by the multi-form energy in production of energy, conversion, transmission, consumption
Collaboration optimization and complementary operation etc. multiple links, for user flexibility supply the different tastes such as cold heat/electricity the energy, it can be achieved that
The high efficiency of various energy resources entirety utilizes, and is the important means for realizing sustainable development, clean energy resource substitution.
From the point of view of gas-is electrically coupled the equipment energy input form of integrated energy system, powering device is broadly divided into two classes: electricity
Power drive equipment (such as earth source heat pump, electric boiler) and gas driven equipment (such as gas turbine, gas fired-boiler)；Meanwhile gas-
Being electrically coupled integrated energy system includes two kinds of electric power, combustion gas energy inputs.When operating normally, combustion gas, electric power are supplied simultaneously, are adjusted
Degree strategy can be according to electricity, the operation of refrigeration duty demand curve, power purchase/purchase gas price coordination different driving equipment, lifting system fortune
Row economy；In addition, combustion gas (electric power) system can provide spare support in electric power (combustion gas) side's supply discontinuity, reduce big
The generation of scale mistake load phenomenon.It may be noted that when the one side's supply discontinuity of electricity/gas, side's standby operation, it is possible that load
The case where cannot fully meeting, needs to carry out reasonable load excision according to load significance level and corresponding operating index at this time.
The supply of important load when to guarantee that gas (electricity) interrupts, other than " standby usage " of electric (gas) autonomous system, it is also necessary to play and store
Thermal " auxiliary standby " effect.
Currently, the influence that the Optimized Operation for being electrically coupled integrated energy system to gas-ignores source supply fault more carries out list
One economic load dispatching, the use for being unable to satisfy system important load under source fault condition can demand.Therefore, being badly in need of one kind can be simultaneous
Gu system performance driving economy and Optimization Scheduling to source failure adaptability, based on gas, electrically independent system " complementation coordinates,
The thought of mutual backup " is coordinated the operation of power driven equipment and gas driven equipment, and is promoted by certain backup means
To the adaptability of source supply fault, meeting to economic and reliable system can demand.
Summary of the invention
System performance driving economy can be taken into account the technical problem to be solved by the invention is to provide one kind and to source failure
The spare gas-of the considerations of adaptability energy storage is electrically coupled integrated energy system flexible scheduling method.
The technical scheme adopted by the invention is that: it is a kind of to consider that the spare gas-of energy storage is electrically coupled integrated energy system elasticity
Dispatching method includes the following steps:
1) integrated energy system is electrically coupled according to selected gas-, inputs electricity price, gas price information, read electric load, cold
The predicted value of load, intensity of illumination, energy source station equipment composition, equipment operating parameter, the currently stored energy of energy storage system in input set
Amount, gas-is electrically coupled integrated energy system scheduling interval, load minimum meets ratio, does not meet load rejection penalty, power supply
Duration parameters are interrupted with gas supply；
2) gas-provided according to step 1) is electrically coupled the structure and parameter of integrated energy system, establishes gas-and is electrically coupled synthesis
Energy resource system equipment operation constraint and cold/electric equilibrium of supply and demand constraint, wherein equipment operation constraint includes that earth source heat pump unit is run
Constraint, cold-storage water tank operation constraint, chiller unit operation constraint, ice-storage system operation constraint, gas turbine operation are about
Beam and Absorption Refrigerator operation constraint；
3) it carries out the calculating in energy storage spare capacity rolling calculation stage: comprehensive energy system is electrically coupled according to gas-in failure domain
The predictive information of system load and intensity of illumination, at the beginning of gas-is electrically coupled integrated energy system cold-storage device in selection each rolling period
The minimum objective function of initial value considers equipment operation constraint and meets the constraint of setting ratio load, generates electricity, gas source end failure
When be able to satisfy the minimum energy storage spare capacity value that gas-is electrically coupled integrated energy system setting ratio workload demand；
4) Optimized Operation of economic dispatch stage a few days ago is carried out: according to illumination intensity information in dispatching cycle a few days ago, cold negative
Lotus and electric load predictive information and generated energy storage spare capacity value are chosen gas-in a full schedule period and are electrically coupled
The minimum objective function of integrated energy system operating cost considers equipment operation constraint, cold/electric equilibrium of supply and demand constraint and accumulation of heat dress
Set Reserve Constraint, generate gas-be electrically coupled integrated energy system it is a few days ago multi-period include operating cost, host start and stop instruction, fortune
Row operating condition, energy supply power, energy storage equipment energy supply instructs and the operation plan of power；
5) it carries out the Optimized Operation in real time execution stage: when combustion gas and normal power supply, executing described in step 4)
Plan, when combustion gas or power supply are broken down, then gas-is electrically coupled integrated energy system and switches to failure operation mode, choosing
Gas-in the remaining scheduling slot of end period failure period of right time to dispatching cycle is taken to be electrically coupled integrated energy system operating cost
With the minimum objective function of the sum of load loss expense, wherein it includes power purchase expense that gas-, which is electrically coupled integrated energy system operating cost,
It is used with purchase gas expense, consider equipment operation constraint, equilibrium of supply and demand constraint and meets the constraint of setting ratio load, it is preferential to meet setting
Ratio load energy demand generates gas-in remaining scheduling slot and is electrically coupled opening including operating cost, host for integrated energy system
Stop instruction, operating condition, energy supply power, energy storage equipment energy supply instructs and the operation plan of power, and executes the plan.
The minimum objective function of system cold-storage device initial value in each rolling period of selection described in step 3) indicates
Are as follows:
In formula, tSIt is the initial time of rolling optimal dispatching,Respectively tSMoment cold-storage water tank, ice-reserving
Slot spare capacity；Wherein type ∈ { E, G }, E indicate power failure, and G indicates combustion gas failure.
Regenerative apparatus Reserve Constraint described in step 4) indicates are as follows:
In formula,For t moment energy storage equipment institute cold storage capacity,Respectively t moment cold-storage water tank, Ice Storage Tank
Institute's cold storage capacity, Wt TS,RFor t moment regenerative apparatus spare capacity,Respectively cold-storage water tank, Ice Storage Tank are initially cold
Amount, NTFor the scheduling interval number in a full schedule period, capacity subscript suffix F, B respectively represent next scheduling day in formula
With upper scheduling day relevant parameter.
Objective function described in step 5) indicates are as follows:
In formula,Indicate t moment purchase electricity price,For the electrical power on t moment system interconnection,Indicate t moment
Gas price lattice are purchased,For the gas horsepower of t moment gas turbine consumption, tOUTFor failure initial time,Respectively
The unsatisfied refrigeration duty of t moment and electric load, EC、EEIt is respectively the rejection penalty of unit less than sufficient refrigeration duty and electric load, Δ t
To dispatch step-length, NTFor the scheduling interval number in a full schedule period.
The spare gas-of consideration energy storage of the invention is electrically coupled integrated energy system flexible scheduling method, based on solution gas-
It is electrically coupled the Optimal Scheduling of integrated energy system, fully considers that power driven equipment, the complementary of gas driven equipment are coordinated
Effect, and the responding ability of in emergency circumstances energy storage equipment is played, it establishes and considers that energy storage cushion gas-is electrically coupled integrated energy system
Multistage flexible scheduling model, load restoration scheme when obtaining system operation plan and failure occurring a few days ago.
Detailed description of the invention
Fig. 1 is that the present invention considers that the spare gas-of energy storage is electrically coupled the flow chart of integrated energy system flexible scheduling method；
Fig. 2 is that gas-is electrically coupled integrated energy system structure chart；
Fig. 3 is the cold power-balance figure of scheduling phase a few days ago；
Fig. 4 is scheduling phase electrical power balance chart a few days ago；
Fig. 5 is energy storage equipment storage cooling capacity and minimum spare capacity relational graph.
Specific embodiment
Integrated energy system elasticity is electrically coupled to the spare gas-of consideration energy storage of the invention below with reference to embodiment and attached drawing
Dispatching method is described in detail.
As shown in Figure 1, the spare gas-of consideration energy storage of the invention is electrically coupled integrated energy system flexible scheduling method, packet
Include following steps:
1) integrated energy system is electrically coupled according to selected gas-, inputs electricity price, gas price information, read electric load, cold
The predicted value of load, intensity of illumination, energy source station equipment composition, equipment operating parameter, the currently stored energy of energy storage system in input set
Amount, gas-is electrically coupled integrated energy system scheduling interval, load minimum meets ratio, does not meet load rejection penalty, power supply
Duration parameters are interrupted with gas supply；
2) gas-provided according to step 1) is electrically coupled the structure and parameter of integrated energy system, establishes gas-and is electrically coupled synthesis
Energy resource system equipment operation constraint and cold/electric equilibrium of supply and demand constraint, wherein equipment operation constraint includes that earth source heat pump unit is run
Constraint, cold-storage water tank operation constraint, chiller unit operation constraint, ice-storage system operation constraint, gas turbine operation are about
Beam and Absorption Refrigerator operation constraint；Wherein,
(1) the earth source heat pump unit described in runs constraint representation
In formula,Respectively i-th earth source heat pump cooling supply of t moment, cold-storage power；Point
It Wei not the i-th tableland of t moment source heat pump refrigerating, cold-storage operational mode；The respectively minimum of heat pump main frame, maximum system
Cold power；Respectively t moment ground-source heat pump system cooling supply, cold-storage operational mode；ΩHPFor ground-source heat pump host
Set；NHPFor ground-source heat pump host number；For t moment heat pump unit power consumption；For i-th heat pump performance
Coefficient (COP), PHP,CWPAnd PHP,CPThe respectively specified electric power of heat pump main frame interlocking chilled water pump and cooling water pump, PWT,
CWP,1And PWT,CWP,2Respectively cold-storage when interlocking let cool circulating pump and charge cycle pump specified electric power.
(2) the cold-storage water tank described in runs constraint representation
In formula,For t moment cold-storage water tank cooling supply power；For the separate unit chilled water pump refrigeration work consumption upper limit；
NWT,CWPFor cold-storage water tank chilled water pump number；Operation mould is let cool for i-th cold-storage water tank water pump of t moment
Formula；Cooling capacity is stored for t moment cold-storage water tank, separate unit cold-storage water tank stores the cooling capacity upper limit；NWTFor cold-storage water tank
Number；εWTRate is let cool certainly for cold-storage water tank；Δ t is scheduling step-length；For the power consumption of cold-storage water tank；For t moment storage
Cold water storage cistern lets cool operational mode.
(3) chiller unit described in runs constraint representation
In formula,For t moment i-th conventional cold water main unit refrigeration work consumption；For t moment i-th conventional cold water master
Machine cooling mode；NWCFor conventional cold water main unit number；The respectively upper and lower limit of its refrigeration work consumption；ΩWCFor routine
The set of cold water main unit；For t moment chiller unit power consumption；For the conventional cold water main unit coefficient of performance；
PWC,CWP、PWC,CPAnd PWC,CTThe specified use of respectively conventional cold water main unit interlocking chilled water pump, cooling water pump and open cooling tower
Electrical power.
(4) ice-storage system described in runs constraint representation
In formula,For t moment ice-storage system, Ice Storage Tank refrigeration work consumption；Respectively t moment
I-th Double-working-condition host refrigeration, ice making power；For the upper and lower limit of Double-working-condition host refrigeration work consumption；The upper and lower limit of power is made ice for it；For t moment i-th Double-working-condition host refrigeration, ice making operation
Mode； For t moment Double-working-condition unit refrigeration, ice making operation mode；For i-th ice storage system of t moment
System chilled water pump operational mode；NIS,CWPFor ice-storage system chilled water pump number；Cooling capacity is stored for t moment Ice Storage Tank；W IT、The upper and lower limit of cooling capacity is stored for Ice Storage Tank；εITRate is let cool certainly for Ice Storage Tank；The upper limit of the power is let cool for Ice Storage Tank；For the separate unit chilled water pump refrigeration work consumption upper limit；ΩDCFor the set of Double-working-condition host；For t moment ice-storage system
Power consumption；COPi DC,C、COPi DC,IRespectively Double-working-condition host refrigeration, the ice making coefficient of performance, PEP、PDC,CP、PDC,CT、PIS,CWP
The respectively specified electric power of ethylene glycol solution pump, cooling water pump, open cooling tower, chilled water pump.
(5) the gas turbine operation constraint representation described in is
In formula,Indicate that t moment gas turbine consumes gas horsepower,WithIndicate t moment gas turbine power generation
Power and heat production power, ηGTFor generating efficiency, αGTFor gas turbine thermoelectricity ratio, PGT,RFor gas turbine rated generation power.
(6) Absorption Refrigerator described in runs constraint representation
In formula,Indicate absorption refrigerating equipment refrigeration work consumption,Indicate that Absorption Refrigerator consumes thermal power,
COPACIndicate the Absorption Refrigerator coefficient of performance, i.e., cold and hot ratio, QAC,RFor absorption refrigeration equipment rated capacity.
(7) cold/electric equilibrium of supply and demand constraint representation described in is
In formula,For t moment cooling load of the air-conditioning system,For t moment system electric load,To be respectively t moment light
Lie prostrate system output power, dominant eigenvalues, Pt TL,maxFor interconnection maximum allowable power value, PGT,maxFor the maximum allowable purchase qigong
Rate value.
3) it carries out the calculating in energy storage spare capacity rolling calculation stage: comprehensive energy system is electrically coupled according to gas-in failure domain
The predictive information of system load and intensity of illumination, at the beginning of gas-is electrically coupled integrated energy system cold-storage device in selection each rolling period
The minimum objective function of initial value considers equipment operation constraint and meets the constraint of setting ratio load, generates electricity, gas source end failure
When be able to satisfy the minimum energy storage spare capacity value that gas-is electrically coupled integrated energy system setting ratio workload demand；
(1) the minimum objective function of system cold-storage device initial value in selection each rolling period described in indicates are as follows:
In formula, tSIt is the initial time of rolling optimal dispatching,Respectively tSMoment cold-storage water tank, ice-reserving
Slot spare capacity；Wherein type ∈ { E, G }, E indicate power failure, and G indicates combustion gas failure.
(2) the setting ratio load described in meets constraint representation are as follows:
In formula, RC、RERespectively indicate refrigeration duty, electric load minimum meets ratio (i.e. important cold, electric load ratio).
When power failure, failure period dominant eigenvalues are zero；When combustion gas failure, it is zero that the failure period, which purchases qigong rate, is seen
Following formula:
In formula,Respectively power failure, combustion gas trouble duration.
The compact form of the spare rolling calculation of energy storage is writeable are as follows:
Then to each time of running, minimum energy storage spare capacity value can be acquired:
In formulaRespectively tSRequired energy storage spare capacity under moment power failure, combustion gas failure.
4) Optimized Operation of economic dispatch stage a few days ago is carried out: according to illumination intensity information in dispatching cycle a few days ago, cold negative
Lotus and electric load predictive information and generated energy storage spare capacity value are chosen gas-in a full schedule period and are electrically coupled
The minimum objective function of integrated energy system operating cost considers equipment operation constraint, cold/electric equilibrium of supply and demand constraint and accumulation of heat dress
Set Reserve Constraint, generate gas-be electrically coupled integrated energy system it is a few days ago multi-period include operating cost, host start and stop instruction, fortune
Row operating condition, energy supply power, energy storage equipment energy supply instructs and the operation plan of power；
(1) the minimum objective function of systematic running cost in one full schedule period of selection described in indicates are as follows:
In formula,Indicate t moment purchase electricity price,Indicate that t moment purchases gas price lattice, NTFor a full schedule period tune
Degree interval number.
(2) the regenerative apparatus Reserve Constraint described in indicates are as follows:
In formula,For t moment energy storage equipment institute cold storage capacity,Respectively t moment cold-storage water tank, Ice Storage Tank
Institute's cold storage capacity, Wt TS,RFor t moment regenerative apparatus spare capacity,Respectively cold-storage water tank, Ice Storage Tank are initially cold
Amount, NTFor the scheduling interval number in a full schedule period, capacity subscript suffix F, B respectively represent next scheduling day in formula
With upper scheduling day relevant parameter.
The compact form of economic load dispatching is written as a few days ago:
5) it carries out the Optimized Operation in real time execution stage: when combustion gas and normal power supply, executing described in step 4)
Plan, when combustion gas or power supply are broken down, then gas-is electrically coupled integrated energy system and switches to failure operation mode, choosing
Gas-in the remaining scheduling slot of end period failure period of right time to dispatching cycle is taken to be electrically coupled integrated energy system operating cost
With the minimum objective function of the sum of load loss expense, wherein it includes power purchase expense that gas-, which is electrically coupled integrated energy system operating cost,
It is used with purchase gas expense, consider equipment operation constraint, equilibrium of supply and demand constraint and meets the constraint of setting ratio load, it is preferential to meet setting
Ratio load energy demand generates gas-in remaining scheduling slot and is electrically coupled opening including operating cost, host for integrated energy system
Stop instruction, operating condition, energy supply power, energy storage equipment energy supply instructs and the operation plan of power, and executes the plan.
(1) objective function described in indicates are as follows:
In formula,Indicate t moment purchase electricity price,For the electrical power on t moment system interconnection,Indicate t moment
Gas price lattice are purchased,For the gas horsepower of t moment gas turbine consumption, tOUTFor failure initial time,Respectively
The unsatisfied refrigeration duty of t moment and electric load, EC、EEIt is respectively the rejection penalty of unit less than sufficient refrigeration duty and electric load, Δ t
To dispatch step-length, NTFor the scheduling interval number in a full schedule period.
(2) equilibrium of supply and demand constraint representation described in are as follows:
(3) the setting ratio load described in meets constraint representation are as follows:
If electric power, combustion gas failure occurs, failure period dominant eigenvalues, combustion gas injecting power are zero, see below formula:
The compact form of failure operation model-based optimization scheduling is written as:
The spare gas-of consideration energy storage of the invention is electrically coupled integrated energy system flexible scheduling method, complementary based on pneumoelectric
The spare responding ability of thought and energy storage device is run, and multistage flexible scheduling strategy is solved using related solver,
Obtain system operating scheme in dispatching cycle.
For the embodiment of the present invention, input electricity price information, gas price first, electric load dispatching cycle of system one is pre-
Measured value, cooling load prediction value, intensity of illumination predicted value；Then energy source station equipment composition, equipment operating parameter, cold-storage in input set
The currently stored cooling capacity of equipment, system call interval, setting ratio load proportion, do not meet load rejection penalty, power supply and
Gas supply interrupts the initial value of the variables such as duration or parameter.Gas-as shown in Figure 2 is electrically coupled in integrated energy system, by outside
Power grid and photovoltaic system meet electricity needs；Energy source station is concentrated to generate air conditioner cold water by energy supply pipeline to each building,
Meet cooling needs by fan coil.Concentrating energy source station includes: 3 earth source heat pumps, 2 cold-storage water tanks, 2 conventional cold water masters
Machine and one group of ice storage subsystem (two Double-working-condition hosts, an Ice Storage Tank), a gas turbine and an absorption refrigeration
Machine.Detail parameters are shown in Table 1.Cold-storage water tank and ice storage storage cooling capacity initial value are taken as 0；1h is divided between system call；It is electric when peak
1.35 yuan/kWh of valence (8:00-11:00,18:00-23:00), 0.47 yuan/kWh of electricity price when paddy (00:00-7:00,23:00-00:
00), usually 0.89 yuan/kWh of electricity price (7:00-8:00,11:00-18:00)；Electric power, gas supply duration of interruption take respectively
For 2 hours/time, 4 hours/time；It is respectively 70%, 80% that setting electricity, refrigeration duty minimum, which meet ratio,；Electric load, cold is not met
Load rejection penalty is taken as 100 yuan/kWh, 60 yuan/kWh respectively.
The cold power-balance of scheduling phase and electrical power balance are shown in Fig. 3, Fig. 4 a few days ago, and energy storage equipment stores cooling capacity and minimum is standby
Fig. 5 is seen with capacity relationship.Whether comparison considers the operating cost of system when energy storage is spare, the results are shown in Table 2, wherein strategy 1 is not examined
Consider the spare of stored energy capacitance, strategy 2 considers the spare of stored energy capacitance.When power supply failure occurs for 22:00, if consider
System loading meets situation and is shown in Table 3 under the spare scheduling strategy of energy storage.
Executing the computer hardware environment that optimization calculates is Intel (R) Xeon (R) CPU E5-2603, and dominant frequency is
1.60GHz inside saves as 8GB；Software environment is 10 operating system of Windows.
It can be seen that from the cold power-balance of scheduling phase a few days ago and electrical power distribution in paddy rate period, electricity price is lower, is
System preferentially to external electrical network power purchase, meets cold, electricity demanding, and insufficient section is supplemented by gas turbine consumption combustion gas；In non-valley electricity price
Period, electricity price is higher, and gas turbine is run with relatively high power, and insufficient cold, electricity demanding to external electrical network power purchase by meeting.It can be with
It obtains, scheduling strategy can preferably realize gas driven equipment, the optimal coordination of power driven equipment, according to the change of energy prices
Change the complementary advantage for playing different energy sources driving device, realizes the reduction of operating cost.
After the spare capacity that energy storage equipment storage cooling capacity and minimum spare capacity relationship can be seen that consideration energy storage, store
Can device storage cooling capacity be all larger than required backed-up value, guarantee when combustion gas, power supply failure occurs system be able to satisfy it is important it is cold/
Electric load.Comparison whether consider the spare systematic running cost of energy storage can be seen that consider energy storage it is spare after, due to global storage
The spare of end period storage energy is especially dispatched in the increase of cooling capacity, result in the increasing by a small margin of operating cost (514.2 yuan,
Variation ratio 0.54%), it ensure that the reliable supply of setting ratio load with lesser stand-by cost cost.
From 22:00 occur power supply failure when load meet situation can be seen that consider energy storage it is spare after, failure time domain
The interior important cold electric load of system is fully met；Do not consider in the spare scheduling strategy of energy storage, electric load Service Efficiency is remote
Lower than setting ratio load proportion, will seriously affect garden normally produce, household electricity demand.As it can be seen that the scheduling that energy storage is spare
Strategy has given full play to the responding ability of in emergency circumstances energy storage equipment, spare setting when realizing failure by certain capacity
The supply of ratio load.
To sum up, consider that the spare gas-of energy storage is electrically coupled integrated energy system flexible scheduling method and has fully considered that pneumoelectric is mutual
The responding ability of operation characteristic and regenerative apparatus is mended, realizes the coordinated operation of plurality of energy supplies, energy storage equipment, and preferably with smaller
Economic cost enhance system to the adaptability of source failure, can meet to economic and reliable user with can demand.
Table 1 concentrates energy station structure and parameter
The different scheduling strategy operating cost comparisons of table 2
Table 3 failure period (22:00-00:00) load meets situation
Claims (4)
1. a kind of gas-for considering that energy storage is spare is electrically coupled integrated energy system flexible scheduling method, which is characterized in that including as follows
Step:
1) integrated energy system is electrically coupled according to selected gas-, inputs electricity price, gas price information, read electric load, cold negative
Lotus, intensity of illumination predicted value, energy source station equipment composition in input set, equipment operating parameter, the currently stored energy of energy storage system,
Gas-is electrically coupled integrated energy system scheduling interval, load minimum meets ratio, do not meet load rejection penalty, power supply and
Gas supply interrupts duration parameters；
2) gas-provided according to step 1) is electrically coupled the structure and parameter of integrated energy system, establishes gas-and is electrically coupled comprehensive energy
System equipment operation constraint and cold/electric equilibrium of supply and demand constraint, wherein equipment operation constraint include earth source heat pump unit operation constraint,
Cold-storage water tank operation constraint, chiller unit operation constraint, ice-storage system run constraint, gas turbine operation constraint and inhale
The constraint of receipts formula refrigerator operation；
3) carry out the calculating in energy storage spare capacity rolling calculation stage: it is negative to be electrically coupled integrated energy system according to gas-in failure domain
The predictive information of lotus and intensity of illumination chooses gas-in each rolling period and is electrically coupled integrated energy system cold-storage device initial value
Minimum objective function considers equipment operation constraint and meets the constraint of setting ratio load, energy when generating electricity, gas source end failure
Meet the minimum energy storage spare capacity value that gas-is electrically coupled integrated energy system setting ratio workload demand；
4) carry out the Optimized Operation of economic dispatch stage a few days ago: according to illumination intensity information in dispatching cycle a few days ago, refrigeration duty and
Electric load predictive information and generated energy storage spare capacity value choose gas-in a full schedule period and are electrically coupled synthesis
The minimum objective function of energy system operation expense considers that equipment operation constraint, cold/electric equilibrium of supply and demand constraint and regenerative apparatus are standby
With constraint, generate gas-be electrically coupled integrated energy system it is a few days ago multi-period include operating cost, host start and stop instruction, operation work
Condition, energy supply power, energy storage equipment energy supply instructs and the operation plan of power；
5) it carries out the Optimized Operation in real time execution stage: when combustion gas and normal power supply, executing plan described in step 4),
When combustion gas or power supply are broken down, then gas-is electrically coupled integrated energy system and switches to failure operation mode, chooses failure
Gas-is electrically coupled integrated energy system operating cost and load in the remaining scheduling slot of end period period of right time to dispatching cycle
The minimum objective function of the sum of failure costs, wherein it includes power purchase expense and purchase that gas-, which is electrically coupled integrated energy system operating cost,
Gas expense is used, and is considered equipment operation constraint, equilibrium of supply and demand constraint and is met the constraint of setting ratio load, it is negative preferentially to meet setting ratio
Lotus energy demand generates gas-in remaining scheduling slot and is electrically coupled referring to including operating cost, host start and stop for integrated energy system
It enables, operating condition, energy supply power, energy storage equipment energize the operation plan of instruction and power, and execute the plan.
2. the gas-according to claim 1 for considering that energy storage is spare is electrically coupled integrated energy system flexible scheduling method, special
Sign is that the minimum objective function of system cold-storage device initial value in each rolling period of selection described in step 3) indicates are as follows:
In formula, tSIt is the initial time of rolling optimal dispatching,Respectively tSMoment cold-storage water tank, Ice Storage Tank are standby
Use capacity；Wherein type ∈ { E, G }, E indicate power failure, and G indicates combustion gas failure.
3. the gas-according to claim 1 for considering that energy storage is spare is electrically coupled integrated energy system flexible scheduling method, special
Sign is that regenerative apparatus Reserve Constraint described in step 4) indicates are as follows:
In formula,For t moment energy storage equipment institute cold storage capacity,Respectively t moment cold-storage water tank, Ice Storage Tank are stored
Cooling capacity, Wt TS,RFor t moment regenerative apparatus spare capacity,The respectively initial cooling capacity of cold-storage water tank, Ice Storage Tank, NTFor
The scheduling interval number in one full schedule period, capacity subscript suffix F, B respectively represent next scheduling day and upper one in formula
A scheduling day relevant parameter.
4. the gas-according to claim 1 for considering that energy storage is spare is electrically coupled integrated energy system flexible scheduling method, special
Sign is that objective function described in step 5) indicates are as follows:
In formula,Indicate t moment purchase electricity price,For the electrical power on t moment system interconnection,Indicate that t moment purchases gas
Price,For the gas horsepower of t moment gas turbine consumption, tOUTFor failure initial time,When respectively t
Carve unsatisfied refrigeration duty and electric load, EC、EEIt is respectively the rejection penalty of unit less than sufficient refrigeration duty and electric load, Δ t is to adjust
Spend step-length, NTFor the scheduling interval number in a full schedule period.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555280A (en) * | 2020-05-29 | 2020-08-18 | 山东大学 | Elastic power distribution network post-disaster recovery control method based on electricity-gas comprehensive energy system |
| CN112381672A (en) * | 2020-12-03 | 2021-02-19 | 上海交通大学 | Energy supply fault processing method of industrial park comprehensive energy system considering energy storage cooperation |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110055287A1 (en) * | 2010-07-02 | 2011-03-03 | David Sun | System tools for evaluating operational and financial performance from dispatchers using after the fact analysis |
| CN106602552A (en) * | 2016-12-20 | 2017-04-26 | 广东电网有限责任公司电力调度控制中心 | Power-gas combined scheduling method and system |
| CN107807523A (en) * | 2017-10-18 | 2018-03-16 | 国网天津市电力公司电力科学研究院 | Consider the Regional Energy internet multi-source coordination optimization operation reserve of tou power price |
| CN108764758A (en) * | 2018-06-20 | 2018-11-06 | 广州供电局有限公司 | The Synergistic method of meter and the electric power and natural gas interacted system of demand side management |
| CN108830743A (en) * | 2018-05-25 | 2018-11-16 | 天津大学 | Consider the garden integrated energy system Optimization Scheduling of a variety of cold-storage devices |
| CN108964041A (en) * | 2018-07-23 | 2018-12-07 | 燕山大学 | A kind of control method of electricity-interconnection integrated energy system peak load deliverability |
| CN109063992A (en) * | 2018-07-18 | 2018-12-21 | 国网重庆市电力公司经济技术研究院 | Consider the power distribution network Expansion Planning method of regional complex energy resource system optimization operation |
| CN109636052A (en) * | 2018-12-20 | 2019-04-16 | 上海电力学院 | A kind of collaborative planning method of gas electric system |
-
2019
- 2019-05-30 CN CN201910460944.XA patent/CN110222970B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110055287A1 (en) * | 2010-07-02 | 2011-03-03 | David Sun | System tools for evaluating operational and financial performance from dispatchers using after the fact analysis |
| CN106602552A (en) * | 2016-12-20 | 2017-04-26 | 广东电网有限责任公司电力调度控制中心 | Power-gas combined scheduling method and system |
| CN107807523A (en) * | 2017-10-18 | 2018-03-16 | 国网天津市电力公司电力科学研究院 | Consider the Regional Energy internet multi-source coordination optimization operation reserve of tou power price |
| CN108830743A (en) * | 2018-05-25 | 2018-11-16 | 天津大学 | Consider the garden integrated energy system Optimization Scheduling of a variety of cold-storage devices |
| CN108764758A (en) * | 2018-06-20 | 2018-11-06 | 广州供电局有限公司 | The Synergistic method of meter and the electric power and natural gas interacted system of demand side management |
| CN109063992A (en) * | 2018-07-18 | 2018-12-21 | 国网重庆市电力公司经济技术研究院 | Consider the power distribution network Expansion Planning method of regional complex energy resource system optimization operation |
| CN108964041A (en) * | 2018-07-23 | 2018-12-07 | 燕山大学 | A kind of control method of electricity-interconnection integrated energy system peak load deliverability |
| CN109636052A (en) * | 2018-12-20 | 2019-04-16 | 上海电力学院 | A kind of collaborative planning method of gas electric system |
Non-Patent Citations (6)
| Title |
|---|
| DONGSEN LI: "Study on coupled planning of power grid and gas network considering P2G device", 《2017 IEEE CONFERENCE ON ENERGY INTERNET AND ENERGY SYSTEM INTEGRATION (EI2)》 * |
| XIANGRUI LIU等: "Integrated Energy Planning Considering Natural Gas and Electric Coupling", 《2018 CHINA INTERNATIONAL CONFERENCE ON ELECTRICITY DISTRIBUTION (CICED)》 * |
| 杨 挺等: "人工智能在电力系统及综合能源系统中的应用综述", 《电力系统自动化》 * |
| 林俐等: "计及微电源效率约束的多源微网优化调度", 《现代电力》 * |
| 程林等: "基于多能协同策略的能源互联微网研究", 《电网技术》 * |
| 雷金勇等: "考虑电热气耦合的综合能源系统规划方法", 《电力系统及自动化学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555280A (en) * | 2020-05-29 | 2020-08-18 | 山东大学 | Elastic power distribution network post-disaster recovery control method based on electricity-gas comprehensive energy system |
| CN112381672A (en) * | 2020-12-03 | 2021-02-19 | 上海交通大学 | Energy supply fault processing method of industrial park comprehensive energy system considering energy storage cooperation |
| CN112381672B (en) * | 2020-12-03 | 2022-05-20 | 上海交通大学 | Energy supply fault processing method of industrial park comprehensive energy system considering energy storage cooperation |
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